The company’s Connectivity Lab includes aerospace and communications technology experts from NASA and UK-based Ascenta to create what Zuckerberg calls “connectivity aircraft.” Two possible solutions were described in an announcement on Internet.org, an initiative that aims to bring internet access to the two-thirds of the world that doesn’t have it.

For low-density areas, the Connectivity Lab proposed low-Earth orbit satellites that beam the internet to the ground. For suburban areas, the team proposed a solar-powered aircraft that travels about 65,616 feet above ground. It can stay aloft for months at a type, while it broadcasts internet down. The devices would communicate using infrared lasers.

“We’re looking forward to working with our Internet.org partners and operators worldwide to deploy these technologies and deliver on the dream of connecting the world,” Zuckerberg wrote.